Improvement in machines for rolling angle-iron



J. J. THOMAS.

I MACHINES FOR ROLLING ANGLE IRON. N0. 178,4;86. Patented June 6,1876..

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UNITED STATES JOHN J. THOMAS, OF ZANESVILLE, OHIO.

IMPROVEMENT IN MACHINES FOR ROLLING ANGLE-IRON.

Specification forming part of Letters Patent No. 178,486, dated J une,, 1876; application filed March 24, 1876.

To all whom it may concern Be it known that 1, JOHN J, THOMAS, of Zanesville, in the county of Muskingum and State of Ohio, have invented certain new and iron.

My objects are to prevent the production of defects in the iron in the process of formin git into angle-bars, to work it uniformly throughout its entire surface, so to construct the rolls as to prevent injury to them from the chipping or breaking off of their corners or edges, and

to increase within a given space the number of passes which may be given the bar through the rolls.

The subject-matter claimed will hereinafter specifically be designated.

The accompanying drawing represents a view,partly in elevation and partly in section, of my improvements as applied to a pair of rolls.

A shaft, A, supports the upper series of collars and grooves of the pair of rolls, and a shaft, B, supports the lower series. The shafts are mounted in suitable housing in any of the usual and well-known ways common in this kind of rolls, which will prevent the separation of their bearing-collars a a b b.

The pile formed by layers or bars, as usual, is first passed, while at a proper heat, through the rolls at 1, between the ridged collar 0 and groove d, the end collar 1) preventing lateral spread in one direction, while a shoulder, c, confines the opposite edge of the pile. This shoulder 0 moves as the rolls revolve against or close to a correspondingly-shaped surface, The inner faces or sides of the collar b and shoulder e, in contact with which the edges of the pile pass through the rolls, are vertical, as shown, and the pile is given a form approximating the desired angle form. The groove d is formed upon a collar or angular projection between and within the peripheries of the collars I) and e, and moves in contact with or close to the inner faces of said collars, as shown. A groove, f, extends between thecollar e and a planesurfaced bearing, f which moves in contact with or close to a corresponding bearing, f, on the opposite roll upon which there are three double-inclined annular ridges or collars, g g

9 the ridge of the central and largest collar,

9 being directly opposite to the bottom of the groovef. The collars g g on either side of the collar g move with their outer faces or inclines in contact with or close to the sides of the groove f, with which they correspond in inclination, or lie parallel with, while their inner faces or inclines form right angles with the sides of the groove,and with the respectively contiguous sides of the central collar 9. The sides of this central collar, it will be observed, are parallel with the sides of the groove f. As the space 2 thus produced between the rolls, shows the form the iron which has already been partially formed by the first pass is caused to assume at the second pass, it will be seen that the angle form is given the iron at this pass, and that the entire body of metal is worked uniformly, the possibility of flaws occurringprevented,and square corners formed at the ends of the wings or sides, while working the layers of the pile parallel with the sides or wings of the bar. By forming the collars g g g as shown, and protecting the outer ones by the sides of the groove f, liability of injury to the rolls is prevented.

From the plane-surfaced annular portion f of the roll it slopes or inclines to a similar but smaller bearing, h. The opposite roll is correspondingly-formed, and provided with a bearing-surface, 71, moving in contact with or close to the surface h. Between the plane-surfaced bearing h and a similar surface, k extends a groove, H, while upon the opposite roll there is a double inclined annular ridge or collar, H, between the bearing hand a similar bearing, W, the peak of which ridge is directly opposite the deepest portion or center of the groove H. The sides or faces of the ridge H are parallel, each with that side of the groove opposite it, as shown.

' Fillets or inclined shoulders M are provided between the faces or oppositely-inclined sides of the collar H and the bearings k W. These fillets form stops, the faces of which are at a right angle to the faces of the groove H and of the collar H, as shown. The space 3 thus formed between the rolls receives the bar at the third pass, and forms it,.as before described, in a perfect manner, with slight liability of injuring the rolls, while preserving the angle form of the bar.

Plane bearing-surfaces I I, to which the rolls are respectively inclined or beveled from their bearings k W, are formed upon the rolls, and move in contact, or nearly so, as shown.

-A-double-inclined annular ridge or collar, J,

contiguous to the hearing I, moves, as the rolls revolve, in an annular groove, J, on the opposite roll, contiguous to the bearingsurface 1 thereof. This groove J, the sides or faces of which are of an inclination corresponding to the inclination of the sides or faces of the centrally-ridged collar'J, receives and moves in contact with or close to one of the faces of said collar for its entire width, the width of the face of the collar and the face of the groove in which it works corresponding, while the opposite face of the groove, in this instance, is of much less extent, and receives a part only of the face of the collar opposite. Between the collar J and a similar collar, J is a double-inclined or centrallyridged collar, K, and between the groove J and a similar groove, J is a groove, K, the two faces or sides of which are parallel with the faces or sides of the collar K, respectively, opposite to them, the peak or ridge of the collar being directly opposite the bottom of the groove. It will be seen that the space 4, thus formed between the upper and lower rollers, preserves the angle form of the bar at the fourth pass; and as the inner faces of the collars J J form stops for the ends of the bar at right angles to the faces both of the collar K and groove K, the square corners of the bar are preserved, and the metal worked to the best advantage. Between the groove J and the end of bearing-collar b the final pass or passes take place. In this instance, two grooves upon one roll and two collars upon the other form three passes or spaces, 5 6 7, for passing the bar through the rolls. The

double-inclined or centrally-ridged collars LL on one roll form a groove, Z, to receive a similar collar, M, on the opposite roll, which has two grooves, M m, to receive the collars L L. By this construction it will be seen that the bar may be passed through the space 5 with the back down, or through the space 6 with the back up, or through both, as well as through 7, if desired.

It is obvious that myinvention maybe modified in some of its details without departing from the spirit thereof. The various passes maybe duplicated on a larger or smaller scale, to form angle-iron of different sizes or outlines, and the forms of the parts changed somewhat to produce other outlines than that represented. By giving the desired form to the bars at the second pass, and maintaining that form through all subsequent manipulations as the bar is reduced, the entire mass or body of metal is thoroughly and uniformly worked, and the production of flawy or otherwise defective'work is almost, if not entirely,

avoided, as has been clearly demonstrated by actual use.

I claim as my invention 7 1. The combination of a central double-inclined collar, 9 similar collars g 9 one on either side thereof, with their inner faces at right angles with the respectively contiguous sides of said central collar, and a groove, f, upon the opposite roll, having sides parallel with the sides of the central collar, and with the outer sides or faces of the collars g g and at right angles with the inner sides or faces of said collars g g", substantially as set forth, whereby an angle form and square corners are given the bar.

2. The combination of the groove H and bearing-surfaces h h upon one roll, and the collar H, the fillets, and the bearing-surfaces upon the other roll, substantially as set forth.

3. The combination of the rolls and the collars L L M thereon. arranged as shown, two on one of the rolls and one on the other, to form tliree spaces for the finishing passes of the bar, as set forth.

In testimony whereof I have hereunto subscribed my name.

JOHN J. THOMAS.

Witnesses:

FRANK H. .SoU'rHARD, A. F. GASSEL. 

